Pen-stamping machine.



PAT-ENTED NOV. 27,1906.

J. GA-BR'IBLSSONV PBN STAMPING MACHINE.

APPLICATION FILED MAY 'I- 1906.

No. 837,049. PATENTED NOV. 27, 1906. J. GABRIBLSSON.

PEN STAMPING MACHINE.

APPLICATION FILED MAY 7. 1906.

' 2 SHEETS-SHEET z JOHN GABRLELSSON, OF MOKEES ROCKS, PENNSYLVANIA.

PEN-STAMPING MACHINE.

Specification of Letters Patent.

Patented Nov. 27, 1906.

Application filed May7,1906. Serial No. 315.648.

To all 1071,0772, it puny concern.-

Be it known that 1, JOHN GABRIELSSON, a subject of the King of Sweden,residing at McKees Rocks, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements in Pen-Stamping Machines, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to pen-stamping machines; and its object is toprovide a press l of simple and effective construction for stamping,slotting, and punching pensfrom a strip of sheet metal, so that theproduct of the machine will be a flat pen-blank ready for bending andfinishing.

The invention comprises a reciprocating plunger carrying a plurality ofstamping and punching tools or dies, means for operating said plungerfrom a revoluble shaft, and means for feeding and guiding the strip ofmetal to the tools or dies.

The construction of the improved press will be fully describedhereinafter in connection with the accompanying drawings, whichconstitute a part of the specification, and its novel features will beset forth in the appended claims.

In the drawings, Figure 1 is a front elevation of a press embodying theinvention. Fig. 2 is a side elevation of the same. Fig. 3 is a top planview of the bed-plate of the press. Fig. 4 is a detail perspective viewof a portion of the feed mechanism. Fig. 5 is a perspective View of aguide-plate employed. Fig. 6 is a similar view of the bed-plate support.Fig. 7 is a similar view of the dieholder. Fig. 8 is a longitudinalvertical section of the die-holder with the dies-or tools in positiontherein. Fig. 9 is a detail perspective view of one of the die-holderblocks; and Figs. 10, 11, and 12 are respectively views in perspectiveof the stamping-tool, the slotting-punch, and the cutting-die em ployedwith the improved press.

The reference-numeral 1 designates an overhanging arm constituting thesupporting-frame of the mechanism and mounted upon a suitable base 2.Rising from the arm 1 is a bracket 3, provided with a bearing 4 for ahorizontal shaft 5, upon one end of which is mounted a wheel 6 for adrivingbelt. Upon the opposite end of the shaft 5 is mounted aneccentric 7, to which is con nected by a wrist-pin 8 the upper end of apitman 9, the lower end of which is connected to a reciprocating plunger10, fitted to move 1n vertical guideways formed 1n the frame of thepress at the front thereof. The

From the forward end of the shaft 15 depends an arm 18, projecting froma yoke 19, provided with hearings to receive a roller 20. Above saidroller within the yoke 19 is pivotally secured a gripping-plate 21, thelower end of which. is adjustable by means of setscrews 22, passingthrough the sides of the yoke to engage the ends of the pivoted plate.

Upon the base or support 1 below the plunger 10 is secured a bed-plate23, which. supports a die-block holder 24, the latter consisting of aflat rectangular plate having its ends turned upward to form parallelflanges 25, between which is secured a die-block 26, cut away, as at 27,to form the outline of a pen blank, and also formed with. circularopenings 28 and a slot 29 to receive a punch.- ing-tool, carried by theplunger. The holder 24 is formed with openings 30 and 31, registeringwith the openings in the die-block, to permit the metal cut from theblank to drop through.

32 designates a die-holder having a dovetail recess 33 on its under faceand formed with a flange 34 and a projecting lug 35 to facilitate theattachment of the holder to the plunger 10.

Vithin the recess 33 are removably secured three blocks 36, 36, and 36conform.- ing in shape to the dovetail form of the recess 33 and securedtherein by set-screws 37. Each of these blocks is formed on its underside with a socket to receive a tool, the latter being removably securedwithin the sockets by set-screws 38. The tool 39, secured to the block36, is a stamping-tool adapted to stamp the name of the pen or itsmanufacturer upon the blank.

The block 36 carries a tool consisting of a punch 40, secured by aset-screw 41 within a slot formed in the end of a rod 42,the latterbeing cut away to form parallel guide-pins 43, adapted to enter theholes 28 in the die- IIO block. The punch forms the elongated slot inthe pen-blank. The block 36 carries a cutting tool or die 44, shaped tocorrespond to the opening 27 of the die-block and serving in conjunctionwith said opening 27 to cut a blank of the required shape ready forbendmg.

The strip of sheet metal from which the blanks are formed is fed throughthe yoke19, passing between the plate 21 and the roller 20. To guide thestrip along the die-block,

, oppositelydisposed U-shaped guides are employed, said guides beingrecessed around their inner edges to receive the heads 46 ofsecuring-screws, by means of which the guides are secured adjustably.

Above the die-block is suitably supported a guide-plate 48, formed withopenings 49 and 50, throughwhich the stamping and punching tools pass,and a T-shaped slot 51 to receive a securing bolt or screw 52.

The feed-yoke is provided with a spring 53, secured at its upper end tothe arm 18, and having its free end bearing against the plate 21 topermit said plate to grip the metal strip upon the roller 20of the feeddevice.

It will be obvious that the feed-yoke will be operated from the shaft 5through. the intermediacy of the cam ,11, roller 12 bearing thereon, andthe lever 14. A retractingspring 54 connects the lever 14 to the frameof the machine, and I provide said lever with an adjusting-screw 55',extending througha threaded opening formed in the lever near its upperend and abutting against the adjacent portion of the frame. By thismeans the po sition of the roller 12 with relation to the op erating-cam11 may be regulated.

It will be apparent that the press will perform simultaneously the threefunctions viz., stamping, slotting, and cutting out blanks-and that theremovability and adjustability of the various parts render the machineconvenient in use.

What I claim, and desire to secure by Letters Patent, is

1. In a pen stamping and punching machine, the combination with areciprocating plunger, of a feed device comprising a suspended yoke,aroller supported within said yoke, a spring-pressed gripping-pl atesecured within the yoke above said roller, means for adjusting saidplate, a rock-shaft to which said yoke is connected, a lever extendingupward from said shaft and carrying a roller, and a rotary cam adaptedto contact with said roller.

2. In a pen stamping and punching maend of said lever, and a rotary camadapted to contact-with said roller.

3. In a pen stamping and punching machine, the combination with areciprocating plunger, of a bed-plate formed with openings correspondingin shape to the tools employed,

a tool-holder secured to said plunger, removable blocks carried by saidholder, a plurality of tools removably secured to said blocks and anautomatic feed device comprising a horizontally-disposed shaft supportedupon the frame of the machine, a yoke depending from one end of saidshaft, a roller mounted within the yoke, a gripping-plate pivotallysecured between the arms of said yoke, means for adjusting the loweredge of said plate with relation to said roller, a lever ex tendingupward from the opposite end of said shaft, a roller carried by saidlever, and a rotary cam to contact with said roller.

4. In a pen stamping and punching machine, the combination with areciprocating plunger, of a bed-plate formed with openings for thedischarge of metal cut from the blanks, a die-block formed with similaropenings, a die-block supported by said holder, a tool-holder secured tosaid plunger, a plurality of tools removably secured within said holderand a guide su ported above the bedplate and formed wit openings forthepassage of said tools.

5. In a pen stamping and punching machine, the combination withareciprocating plunger, and a revoluble shaft for operatin said plunger,of feed mechanism operated from said shaft, a tool-holder secured to theplunger, and a plurality of tools removably secured to said holder,oneof said tools being adapted to stamp letters or characters upon theblank, another of said tools being provided with a punch to slot theblank, and the remaining tool comprising a die to cut the blank from astrip of sheet metal,

In testimony whereof I aflix my signature in the presence of twowitnesses.

JOHN GABRIELSSON.

Witnesses:

C. KLOSTERMANN, E. E. POTTER.

